Impedance spectroscopy analysis of SnS chalcogenide semiconductors

Hegde, SS and Jeevan Fernandes, B and Talapatadur, V and Ramesh, KP and Ramesh, K (2022) Impedance spectroscopy analysis of SnS chalcogenide semiconductors. In: Materials Today: Proceedings .

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Abstract

Tin Sulfide (SnS) semiconductors have captivated attention in recent years as a low-cost photovoltaic material alternative. Tin Sulfide (SnS) was successfully synthesized using a wet-chemical method, yielding a cubic phase that was later annealed at 500 °C to produce an orthorhombic phase. The ac conductivity mechanism and dielectric properties of SnS with cubic and orthorhombic phases were investigated in this paper.Dielectric constant (ε) and ac conductivity (�ac) were measured in frequencies in the rangeof 40 Hz to 20 MHz at room temperature. The dielectric constant and dielectric loss tangent decrease as frequency increases. The increase in frequency-dependent ac conductivity is explained by the correlated barrier hopping (CBH) model. In addition, Nyquist (Cole-Cole) plots of cubic and orthorhombic phases revealed a distinct difference in Nature. Koop's Phenomenological theory helps to explain the variation of dielectric properties. © 2022

Item Type:	Journal Article
Publication:	Materials Today: Proceedings
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Elsevier Ltd.
Keywords:	AC conductivity; Cubic SnS; Dielectric permittivity; SnS semiconductor; Wet chemical method
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	06 Jun 2022 05:39
Last Modified:	06 Jun 2022 05:39
URI:	https://eprints.iisc.ac.in/id/eprint/73139

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